Results 71 to 80 of about 12,566,242 (368)
Galaxy groups in the 2dF galaxy redshift survey: Large Scale Structure with Groups
, 2003 We use the 2dF Galaxy Group Catalogue constructed by Merch\'an & Zandivarez to study the large scale structure of the Universe traced by galaxy groups. We concentrate on the computation of the power spectrum and the two point correlation function.
Abadi +45 more
core +2 more sources
Low Mass Group Environments have no Substantial Impact on the Circumgalactic Medium Metallicity [PDF]
, 2020 We explore how environment affects the metallicity of the circumgalactic medium (CGM) using 13 low mass galaxy groups (2-5 galaxies) at $\langle z_{abs}\rangle=0.25$ identified near background quasars.
Charlton, Jane C. +6 more
core +3 more sources
The Evolution of Galaxy Groups and of Galaxies Therein [PDF]
, 2007 Properties of groups of galaxies depend sensitively on the algorithm for group selection, and even the most recent catalogs of groups built from redshift-space selection should suffer from projections and infalling galaxies. The cosmo-dynamical evolution of groups from initial Hubble expansion to collapse and virialization leads to a fundamental track (
openaire +5 more sources
GALAXY GROUPS IN THE 2MASS REDSHIFT SURVEY [PDF]
, 2016 A galaxy group catalog is constructed from the 2MASS Redshift Survey (2MRS) with the use of a halo-based group finder. The halo mass associated with a group is estimated using a “GAP” method based on the luminosity of the central galaxy and its gap with ...
Yi Lu +8 more
semanticscholar +1 more source
THE ROLE OF POOR GALAXY CLUSTERS FOR STUDYING SUPERCLUSTER STRUCTURE
Odessa Astronomical Publications, 2008 The distribution of galaxy clusters is analyzed in regions of 6 galaxy superclusters with both measured and estimated redshifts. The positions of ACO and APM galaxy clusters in the regions are compared with the positions of galaxy clusters and groups ...
E. A. Panko
doaj +1 more source
The Nearest Group of Galaxies [PDF]
The Astrophysical Journal, 1999 Has been accepted for publication in the Astrophysical Journal ...
openaire +3 more sources
Hot Atmospheres of Galaxies, Groups, and Clusters of Galaxies [PDF]
, 2020 Accepted for publication in the book "Reviews in Frontiers of Modern Astrophysics: From Space Debris to Cosmology" (eds Kabath, Jones and Skarka; publisher Springer Nature) funded by the European Union Erasmus+ Strategic Partnership grant "Per Aspera Ad Astra Simul" 2017-1-CZ01-KA203 ...
Norbert Werner +4 more
openaire +3 more sources
The matter distribution in the local universe as derived from galaxy groups in SDSS DR12 and 2MRS [PDF]
, 2015 Context. Friends-of-friends algorithms are a common tool to detect galaxy groups and clusters in large survey data. In order to be as precise as possible, they have to be carefully calibrated using mock catalogues. Aims. We create an accurate and robust
C. Saulder +4 more
semanticscholar +1 more source
Correlation Function of Galaxy Groups
, 2000 We use the Updated Zwicky Catalog of galaxies (Falco et al. 1999) to generate a catalog of groups, by means of a friend-of-friend algorithm. The correlation length of the total sample is well fitted with a power law $ \xi(r)=(r/r_0)^\gamma $ with ...
Barrow J. D. +7 more
core +1 more source
The masses of satellites in GAMA galaxy groups from 100 square degrees of KiDS weak lensing data [PDF]
, 2015 We use the first 100 sq. deg. of overlap between the Kilo-Degree Survey (KiDS) and the Galaxy And Mass Assembly (GAMA) survey to determine the galaxy halo mass of ~10,000 spectroscopically-confirmed satellite galaxies in massive ($M > 10^{13}h^{-1}{\rm M}
C. Sif'on +25 more
semanticscholar +1 more source